2026 KPMI Full Catalog V1 - Flipbook - Page 157
HONDA CB 500 / 4 - CB 550 / 4 1971-'78
®
™
™
KPMI P/N
Type
Max Valve Lift
Installed Height
30-31550
Intake
Exhaust
.440"
1.385"
8
Kit Includes
Seat Pressure Open Pressure
70#
CrSi Valve Springs
@ Lift
203#
8
HONDA
Valve Spring Kit • Lightweight Racing
.440"
Titanium Retainers
Use O.E.M. Basewashers
Spring Only Kit • OEM Replacement
KPMI P/N
Type
Max Valve Lift
Installed Height
.440"
1.390"
Intake
30-4045
Exhaust
8
Kit Includes
Seat Pressure Open Pressure
60#
@ Lift
195#
.440"
CrSi Valve Springs
Valves • Black Diamond™ • Black Nitroneg Stems
Stem Diameter
Tulip
O. L.
Remarks
1.083"
0.2150"
20º
3.680"
Standard
28.50mm
1.122"
0.2150"
20º
3.680"
Oversize
Exhaust
23.00mm
0.905"
0.2145"
30º
3.650"
Standard
Exhaust
24.00mm
0.945"
0.2145"
30º
3.650"
Oversize
KPMI P/N
Type
Head Diameter
30-31330
Intake
27.50mm
30-31331
Intake
30-31334
30-31335
Valve Guides • C630 Bronze
A
B
C
D
E
F
0.475"
0.595"
0.980"
1.230"
0.720"
G
Intake
Exhaust
30-3150
0.2150" 0.4372" / Std.
+0.001”
30-3151
+0.002”
30-3152
+0.004”
30-3154
+0.010”
30-3160
Valve Guide Seals • Viton®
Stem Diameter
O.L
Seal O.D.
Seal Style
5.5mm
0.320"
0.440"
4
Designed for these guide specs
Type
A
B
C
D
Intake
0.358”±0.005”
0.320”
0.110”
0.200”
Exhaust
Part Number
Quantity
Quantity Discount
71016-4
71016-8
71016-16
71016-50
71016-100
Pkg. of 4
0%
Pkg. of 8
0%
Pkg. of 16
Less- 10%
Pkg. of 50
Less- 15%
Pkg. of 100
Less- 20%
KPMI P/N
Material
A
B
C
D
E
Quantity
30-0477
Manganese
Bronze
1.550"
1.465"
Ø 1.250"
Ø 0.8435"
Ø 1.045"
1 Pr.
• Replaces worn or damaged plastic OEM bushing
• High quality manganese bronze o昀昀ers increased durability and better 昀椀tment than OEM component
• OEM P/N: 52108-457-300 & 52108-422-300
Visit us at www.kpmi.us
139
Swing Arm Bushing • Manganese Bronze For CB™500 1975-1976 and CB™550 1975-1978
